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A computer is composed of several individual parts, and they are not all the same. Although computers tend to have similar architecture, there is no guarantee that what components found in one type of computer are also found in another.

There are some components though that appear in every type of computer, and these components tend to make up the bulk of the hardware. Every computer starts off with a CPU or central processing unit. According to HowStuffWorks, the CPU is the brain of the computer, and its job is to process the instructions given to it by any type of compatible software.

Computers also store data in a hard drive. Hard drives can hold gigabytes and even terabytes worth of data. It is also possible to get external hard drives to give a user more storage data outside of their computer.

The final component that is commonly found in computers is the motherboard. The motherboard is what connects all the other parts of the computer and keeps it running as one machine.